Two grades of Q-CEL ONG® Hollow Glass Beads are available as lightweight additives to help maintain density of cement systems or drilling fluids. These single-cell microspheres are white and free-flowing. With significantly lower specific gravity than competitive materials, the formulator has more leeway to reach the lower densities needed. The lower densities of ONG® Series Products favorably impact total costs as well. ONG® 52 are hydrophilic and have no coating, and ONG® 52B are coated and intended for use in higher temperature and pressure applications. It is recommended that actual hollow sphere attrition be determined by lab testing at downhole conditions.
Other Names & Identifiers
- Hollow Glass Spheres
- Lighteweight Cementing Additive
- Compressive Strength Enhancer
- Insulator
Common Challenges
- Low Top of Cement
- Poor Strength Development (Weight on Cement)
- Lightweight (Water Extended)